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Since test suites take long time to pass, it would be nice to have an ability to monitor test suite execution while it's working. It happens pretty often when a person executing tests is not sure that environment has complitely been set. Indeed, noone could be sure completely while tests have not shown appropriate results. So, the simpliest way to check the environment is to execute test suite. But then, user needs to be able to see what's going on. That's true both for test suite and test. During test execution, user needs to see some kind of very simple document describing the state of test process as well as he needs to see output of each test he needs to see, including the one which is currently working.
Can you describe why the current output from testrunner is not sufficient? IMO it already gives you all the information you ask for.